Upgraded xerces-2.9.1-patched-XERCESJ-1257.jar (committed as part of LUCENE-1591) to xercesImpl-2.10.0.jar (which contains the fix for XERCESJ-1257) and also upgraded xml-apis-2.9.0.jar to xml-apis-2.10.0.jar.
lucene/dev/trunk/lucene/contrib/benchmark/CHANGES.txt